Comparison of 2.5 mg/kg and 5 mg/kg systemic bevacizumab in neovascular age-related macular degeneration: Twenty-four week results of an uncontrolled, prospective cohort study

Wolfgang Geitzenauer, Stephan Michels, Franz Prager, Philip J. Rosenfeld, Gabriela Kornek, Laurenz Vormittag, Ursula Schmidt-Erfurth

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

BACKGROUND: To compare safety, visual acuity (VA), and anatomic outcomes of 2.5 mg/kg and 5 mg/kg intravenous bevacizumab in patients with neovascular age-related macular degeneration. METHODS: In an institutional cohort study, 16 patients (2 cohorts, 27 eyes) with neovascular age-related macular degeneration were treated with 5 mg/kg intravenous bevacizumab and 2.5 mg/kg, respectively. All patients received 3 initial intravenous infusions at 2-week intervals. The main outcome measures were VA, optical coherence tomography, and fluorescein angiography. RESULTS: No serious systemic or ocular adverse events were identified. By Day 7, mean VA increased from 56 letters (20/80) at baseline to 60 letters (20/63) in the 5 mg/kg group and mean central retinal thickness decreased by 83 μm. In the 2.5 mg/kg group, mean VA increased from 55 letters (20/80) to 66 letters (20/50) and mean central retinal thickness decreased by 93 μm. By Month 3, VA improved by 10 letters compared to baseline in the 5 mg/kg group and by 9 letters in the 2.5 mg/kg group. Central retinal thickness was reduced by 128 μm in the 5 mg/kg group and by 127 μm in the 2.5 mg/kg group. These benefits were sustained through 6 months. No statistically significant difference was found between both treatment groups regarding safety, VA, and anatomic outcomes. CONCLUSION: Similar VA, optical coherence tomography, and angiographic improvements were observed in both treatment groups up to 6 months. Further follow-up is required to evaluate the long-term durability and safety of both treatment regimens.

Original languageEnglish (US)
Pages (from-to)1375-1386
Number of pages12
JournalRetina
Volume28
Issue number10
DOIs
StatePublished - Nov 1 2008

ASJC Scopus subject areas

  • Ophthalmology

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